Improvement in metallic hatchway-doors



2 Sheets--Sheet1.

T; HYATT. Metal lic Hatchwa-y Doors.

Patented Dec. 2,1873.

WITNEE 5E5- 2 Sheets--Sheet-2.

T. HYATT. Metallic Hatchway Doors.

Patented Dec. 2,1873.

Wi'mEE 5E5- IN -r012- UNITED STATES PATENT CFFIO'E.

THADDEUS HYATT, OF NEW YORK, N. Y., ASSIGNOR TO ELIZABETH A. L. IIYATT,OF SAME PLACE.

lMPROVEMENT IN METALLIC HATCHWAV-DOORS.

Specification forming part of Letters Patent No. 145,184, dated December2, 1873; application filed October 22, 1873.

To all whom it may concern:

Be it known that I, THADDEUs HYATT, of New York, in the county of NewYork and in the State of New York, have invented certain new and usefulImprovements in Elevator Doors; and do hereby declare that the followingis a full, clear, and exact description thereof, reference being had tothe accompanying drawings making a part of this specification, in whichFigure 1 is a perspective view of my illuminating elevator-doors asopened. Fig. 2 is a plan view of the upper side of the same when closed,and Fig. 3 is a longitudinal section of the same.

Letters of like name and kind refer to like parts in each of thefigures.

In the employment of elevator-doors which have glazedilluminating-openings, much difficulty and loss is experienced by reasonof breakage whenever one of said doors is accidentally permitted to fallupon its frame, its great weight rendering the impact severe. To removesuch liability to injury is the design of my invention, which consistsin the employment of buffers composed of rubber or other elasticmaterial between the lower or inner sides of the doors and thesupportingframe, substantially as and for the purpose hereinafterspecified.

In the annexed drawings, A represents a metal frame, having within itscentral portion a rectangular opening, B, of suitable size, whichopening, at its sides, is surrounded by means of a flange, a, securedupon and extending upward from said plate, while immediately within saidflange is provided a rightangled rabbet, a, as shown in Figs. 1 and 3.Hinged to or upon opposite sides of the open ing B are two doors, 0 and0, each of which is provided, within its inner or lower face, with agroove, 0, which extends across each end and outer side, and, when saiddoor is closed, embraces the flange a, as shown in Fig. 3. The innersides of said doors shut closely together, and upon the outer face ofone of them, 0, is provided a flange, that extends vertically upward,and is embraced by an overlapping grooved strip, 0, that is secured uponthe outer face of the second door, 0, and extends horizontally over saidflange, the arrangement of parts being such as to prevent water frompassing through any of the joints into the space below. Vithin thehorizontal portion of the rabbet a are provided a number of openings,61, which have, preferably, a round shape, horizontally, and receiveeach a correspondingly-shaped piece of rubber, D, which extends'upwardto a sufficient height to furnish bearin gs for the lower surfaces ofthe doors when the latter are closed, and relieve the frame from theirdirect impact. When the doors 0 and O are closed it is intended thattheir weight shall be received upon and sustained by the buffers D, soas to render necessary a downward pressure upon the upper sides of saiddoors before they shall be firmly seated and capable of being locked inplace.

As thus arranged, it will be seen that in the event of the falling ofone of the doors its weight would be received first upon the buffers andthe force of the blow partly or entirely broken before said door wouldstrike directly upon its frame, by which means no injury would resultfrom such accident.

Although the buffers are, preferably, applied to the frame and in theposition shown, their operation would be the same if secured upon thedoors or in any position that will bring them between the impingingportions of the same and of said frame.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1s In combination with hinged illuminatingdoors forinclosing an elemtor-opening, elastic buffers placed between theimpinging surfaces of the same and of their frame, substantially as andfor the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this26th day of July, 1873.

TITADDEUS IIYA'LT.

IVitnesses AMBROSE MONELL, CHARLES SPYR.

